L-Malic Acid Natural
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L-Malic Acid Natural

L-malic acid natural's cas code is 97-67-6.

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Product Description

L-malic acid natural Basic information


Product Name:

L-malic acid natural

Synonyms:

L-(-)-Malic acid, CP;Butanedioic acid, 2-hydroxy-, (2S)-;pinguosuan;Butanedioicacid,hydroxy-,(S)-;hydroxy-,(S)-Butanedioicacid;l-(ii)-malicacid;L-Gydroxybutanedioicacid;L-Mailcacid

CAS:

97-67-6

MF:

C4H6O5

MW:

134.09

EINECS:

202-601-5

Product Categories:

Plant extracts;Aliphatics;Chiral Reagents;Chiral chemicals;MalicAcidSeries;Carboxylic Acids (Chiral);Chiral Building Blocks;for Resolution of Bases;Optical Resolution;Synthetic Organic Chemistry;Food & Feed ADDITIVES;Food additive and acidulant;Imidazoles ,Heterocyclic Acids

Mol File:

97-67-6.mol




L-malic acid natural Chemical Properties



Melting point 

101-103 °C(lit.)

alpha 

-2 º (c=8.5, H2O)

Boiling point 

167.16°C (rough estimate)

density 

1.60

FEMA 

2655 | L-MALIC ACID

refractive index 

-6.5 ° (C=10, Acetone)

Fp 

220 °C

storage temp. 

Store at RT.

solubility 

H2O: 0.5 M at 20 °C, clear, colorless

form 

Powder

color 

White

Specific Gravity

1.595 (20/4℃)

PH

2.2 (10g/l, H2O, 20℃)

pka

(1) 3.46, (2) 5.10(at 25℃)

optical activity

[α]20/D 30±2°, c = 5.5% in pyridine

Water Solubility 

soluble

Merck 

14,5707

JECFA Number

619

BRN 

1723541

InChIKey

BJEPYKJPYRNKOW-REOHCLBHSA-N

CAS DataBase Reference

97-67-6(CAS DataBase Reference)

NIST Chemistry Reference

Butanedioic acid, hydroxy-, (s)-(97-67-6)

EPA Substance Registry System

Butanedioic acid, 2-hydroxy-, (2S)- (97-67-6)


L-malic acid natural Safety Information


Hazard Codes 

Xi

Risk Statements 

36/37/38

Safety Statements 

26-36-37/39

WGK Germany 

3

RTECS 

ON7175000

TSCA 

Yes

HS Code 

29181980


L-malic acid natural MSDS Information


Provider

Language

L(-)-Malic acid

English

ACROS

English

SigmaAldrich

English

ALFA

English


L-malic acid natural Usage And Synthesis


Description

ι-Malic acid is nearly odorless (sometimes a faint, acrid odor) with a tart, acidic taste. It is nonpungent. May be prepared by hydration of maleic acid; by fermentation from sugars.

Chemical Properties

L-Malic acid is nearly odorless (sometimes a faint, acrid odor). This compound has a tart, acidic, nonpungent taste.

Chemical Properties

clear colourless solution

Occurrence

Occurs in maple sap, apple, melon, papaya, beer, grape wine, cocoa, sake, kiwifruit and chicory root.

Uses

The naturally occuring isomer is the L-form which has been found in apples and many other fruits and plants. Selective α-amino protecting reagent for amino acid derivatives. Versatile synthon for the preparation of chiral compounds including κ-opioid rece

Uses

Intermediate in chemical synthesis. Chelating and buffering agent. Flavoring agent, flavor enhancer and acidulant in foods.

Definition

ChEBI: An optically active form of malic acid having (S)-configuration.

Preparation

By hydration of maleic acid; by fermentation from sugars.

Purification Methods

Crystallise S-malic acid (charcoal) from ethyl acetate/pet ether (b 55-56o), keeping the temperature below 65o. Or dissolve it by refluxing in fifteen parts of anhydrous diethyl ether, decant, concentrate to one-third volume and crystallise it at 0o, repeatedly to constant melting point. [Beilstein 3 IV 1123.]




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